The $22B number comes from the stock market downturn leading to a loss of wealth of $7B for Musk that happened to be on the same day that Slim said they will cancel contracts for an unspecified amount with Starlink and invest $22B into developing their own infrastructure.
Yeah it’s hit the democratic echo chamber pretty hard with no links to a corporate announcement or other actual source. I’m also curious what his actual plans were, given that Starlink is incredibly bad at high urban density broadband. Was this rural solution of some kind?